3 years ago

How do you prove that 2 lines are parallel?

Mathematics

1 answer:

Debora [2.8K]3 years ago

7 0

You can prove their parallel if they never intercept

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Katena32 [7]

Answer:

6, 8, 4

Step-by-step explanation:

the answers are as follows

a. 6

b. 8

c. 4

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3 years ago

What is the answer to all of them?

melisa1 [442]

The answers are
x=5
n=3
y=4
k=-80

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What is the equation, in slope-intercept form, of the line that passes through (0, 3) and has a slope of −6??

Irina18 [472]

I hope this helps you

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Geometric Series assistance

Levart [38]

we have been asked to find the sum of the series

$\sum _{n=1}^5\left(\frac{1}{3}\right)^{n-1}$

As we know that a geometric series has a constant ratio "r" and it is defined as

$r=\frac{a_{n+1}}{a_n}=\frac{\left(\frac{1}{3}\right)^{\left(n+1\right)-1}}{\left(\frac{1}{3}\right)^{n-1}}=\frac{1}{3}$

The first term of the series is $a_1=\left(\frac{1}{3}\right)^{1-1}=1$

Geometric series sum formula is

$S_n=a_1\frac{1-r^n}{1-r}$

Plugin the values we get

$S_5=1\cdot \frac{1-\left(\frac{1}{3}\right)^5}{1-\frac{1}{3}}$

On simplification we get

$S_5=\frac{121}{81}$

Hence the sum of the given series is $\frac{121}{81}$

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bixtya [17]

Answer:

...

Step-by-step explanation:

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